Heat exchanger with two opposite airflows

ABSTRACT

The application provides a heat exchanger with two opposite airflows, comprises a first partition plate, a fin plate and a second partition plate which are stacked. the fin plate is bent to form a plurality of first peaks and first troughs on the front surface and a plurality of second peaks and second troughs on the back surface; the first peaks are connected to the first partition plate, and the first troughs and the first partition plate define a plurality of first channel for passing gas, the first partition plate is provided with a first through hole communicating with the first channels; the second peaks are connected to the second partition plate, and the second troughs and the second partition plate define a plurality of second channels for passing gas, the second partition plate is provided with a second through hole communicating with the second channels.

CROSS REFERENCE TO RELATED APPLICATIONS

The present application claims the benefit of Chinese Patent Application No. 202221575856.8 filed on Jun. 21, 2022, the contents of which are incorporated herein by reference in their entirety.

BACKGROUND OF THE INVENTION 1. Technical Field

The application relates to the technical field of heat exchangers, in particular to a heat exchanger with two opposite airflows.

2. Description of Related Art

A heat exchanger is a device used to transfer heat from a hot fluid to a cold fluid to meet the specified process requirements. It is an industrial application of convective heat transfer and heat conduction.

In the past, the airflow of many heat exchangers entered from the same position (entering the heat exchanger) and exited from the same position (leaving the heat exchanger), which was usually suitable for forming a single airflow cycle, and the applicability was poor.

BRIEF SUMMARY OF THE APPLICATION

The technical problem to be solved by the application is to provide an improved heat exchanger aiming at the above defects in the related art.

The technical solutions adopted by the application to solve the technical problems comprise: providing a heat exchanger with two opposite airflows, which comprises a first partition plate, a fin plate and a second partition plate which are stacked. the first partition plate and the second partition plate are arranged at intervals, the fin plate is arranged between the first partition plate and the second partition plate, and the fin plate is bent to form a plurality of first peaks and a plurality of first troughs on the front surface and a plurality of second peaks and a plurality of second troughs on the back surface;

-   -   the first peaks of the fin plate are connected to the first         partition plate, and the first troughs and the first partition         plate define a plurality of first channels for gas to pass         through, and a first channel comprises an opening communicating         with the outside between the first partition plate and the         second partition plate, the first partition plate is provided         with a first through hole communicating with the first channels.     -   the second peaks of the fin plate are connected to the second         partition plate, and the second troughs and the second partition         plate define a plurality of second channels for gas to pass         through, and a second channel comprises an opening communicating         with the outside between the first partition plate and the         second partition plate, the second partition plate is provided         with a second through hole communicating with the second         channels.

The first through hole and the second through hole are respectively arranged on opposite sides of the heat exchanger.

Preferably, the opening direction of the first through hole is not parallel to the direction of the first channels.

Preferably, the opening direction of the second through hole is not parallel to the direction of the second channels.

Preferably, the first through hole spans a plurality of the first troughs and simultaneously communicates with a plurality of the first channels.

Preferably, the second through hole spans a plurality of the second troughs and simultaneously communicates with a plurality of the second channels.

Preferably, the fin plate comprises a first side and a second side opposite to the first side, and the first channels and the second channels lead from the first side to the second side of the fin plate, the first through hole is set at a position close to the first side of the fin plate and away from the second side, and the second through hole is set at a position close to the first side of the fin plate two sides away from the position of the first side.

Preferably, the second troughs are open at the edge of the fin plate and a plurality of openings communicating with the outside between the second partition plate and the second partition plate are defined with the second partition plate.

Preferably, the fin plate is bent into a wave shape, the opposite surfaces of the first troughs are the second peaks, and the opposite surfaces of the first peaks are the second troughs.

Preferably, the first channels and the second channels are arranged alternately.

Implementing the technical solution of the application has at least the following beneficial effects: the heat exchanger comprises two gas circulation paths, wherein one gas circulation path is formed by the first channels and the first through holes, and the other gas circulation path is formed by the second channels and the second through holes, the first through holes and the second through holes are respectively arranged on two opposite sides of the heat exchanger, and two paths of airflow circulation can be formed through two opposite airflows, so that the two airflows can be flexibly arranged, the application range is wider, and the heat exchange effect is better.

BRIEF DESCRIPTION OF THE SEVERAL VIEWS OF THE DRAWINGS

In order to more clearly illustrate the technical solutions in the embodiments of the application, the following will briefly introduce the accompanying drawings that are required in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only some embodiments of the application, for those skilled in the art, other drawings can also be obtained according to these drawings in the claims on the premise of not paying creative efforts.

FIG. 1 is a perspective view of a heat exchanger with two opposite airflows according to an embodiment of the present application.

FIG. 2 is another perspective view of the heat exchanger in FIG. 1 .

FIG. 3 is partial enlarged view of the Q site in FIG. 2 .

FIG. 4 is perspective view of the heat exchanger of FIG. 1 (invisible outlines are indicated by dotted lines; solid arrows indicate airflow through the first channel and first through hole, grid arrows indicate airflow through the second channel and second through hole).

The symbols in the figure indicate: a first partition plate 1, a first through hole 11, a second partition plate 2, a second through hole 21, a fin plate 3, a first channel A, a first peak 311, and a first trough 312, a second channel B, a second peak 321, a second trough 322, a first side 41, and a second side 42.

DETAILED DESCRIPTION OF THE APPLICATION

In order to have a clearer understanding of the technical features, purposes and effects of the application, the specific implementations of the application are described in detail with reference to the accompanying drawings. It should be understood that if the orientation or positional relationship indicated by “positive” and “reverse” appears in the text, it is based on the orientation or positional relationship shown in the drawings and is constructed and operated in a specific orientation, which is only for the convenience of describing the technical solution, rather than indicating that the device or element referred to must have a specific orientation, so it should not be construed as a limitation of the present invention. It should also be noted that, unless otherwise clearly stipulated and limited, if terms such as “mounting”, “connecting”, “connecting”, “fixing” and “setting” appear in the text, they should be interpreted in a broad sense, for example, it can be a fixed connection, can also be detachably connected, or integrated; can be directly connected, can also be indirectly connected through an intermediary, can be the internal communication of the two components or the interaction relationship between the two components. When an element is referred to as being “on” or “under” another element, it can be “directly” or “indirectly” on the other element, or one or more intervening elements may also be present. If the terms “second” and “second” appear in the text, they are only for the convenience of describing the technical solution, and cannot be interpreted as indicating or implying the relative importance or implicitly indicating the number of indicated technical features. Features of “second”, “second”, etc. may explicitly or implicitly comprise one or more of such features. Those skilled in the art can understand the specific meanings of the above terms in the present invention according to the specific conditions of the claims.

In the following description, for purposes of explanation and not limitation, specific details are set forth such as the particular system architecture, techniques, etc., in order to provide a thorough understanding of the present invention. However, it will be apparent to those skilled in the art that the present invention may be practiced in other embodiments without these specific details. In other instances, detailed descriptions of well-known systems, devices, circuits, and methods are omitted so as not to obscure the description of the present invention with unnecessary detail.

Referring to FIG. 1-4 , the heat exchanger with two opposite airflows in one embodiment of the present utility comprises a first partition plate 1, a fin plate 3 and a second partition plate 2, which are stacked and the first partition plate 1 is arranged parallel to and spaced apart from the second partition plate 2, and the fin plate 3 is arranged between the first partition plate 1 and the second partition plate 2, and the fin plate 3 is bent to form a plurality of first peaks 311 and a plurality of first troughs 312 on the front surface, a plurality of second peaks 321 and second troughs 322 on the back surface. A first troughs 312 is elongated and extends to the edge of the fin plate 3 and is open. A second trough 322 is elongated and extends to the edge of the fin plate 3 and is open.

The first peaks 311 of the fin plate 3 are connected to the first partition plate 1, and the first troughs 312 and the first partition plate 1 define a plurality of first channels A for passing gas. A first channel A comprises an opening communicating with the outside between the first partition plate 1 and the second partition plate 2. the opening communicating can be used for gas to enter and exit the first channel A. the first partition plate 1 is provided with a first through hole 11 communicating with the first channels A. the first through hole 11 can be used for gas to enter and exit the first channels A. For example, the gas enters the first channels A from the opening of the first channels A between the first partition plate 1 and the second partition plate 2, and exits the first channels A from the first through hole 11. Or conversely, the gas leaves the first channels A from the opening of the first channels A between the first partition plate 1 and the second partition plate 2, and enters the first channels A from the first through hole 11.

The second peaks 321 of the fin plate 3 are connected to the second partition plate 2, and the second troughs 322 and the second partition plate 2 define a plurality of second channels B for passing gas, and the second channel B comprises an opening communicating with the outside between the first partition plate 1 and the second partition plate 2. the second partition plate 2 is provided with a second through hole 21 communicating with the second channels B. the second through hole 21 can be used for gas to enter and exit the second channels B, For example, the gas enters the second channels B from the opening of the second channel B between the first partition plate 1 and the second partition plate 2, and leaves the second channels B from the second through hole 21; or conversely, the gas leaves the second channels B from its opening between the first partition 1 and the second partition 2 and enters the second channels B from the second through hole 21; and enters the second channels B from second through hole 21.

The first through hole 11 and the second through hole 21 are respectively arranged on opposite sides of the heat exchanger.

The heat exchanger comprises two gas flow paths, one is formed by the first channels A and the first through hole 11, the other is formed by the second channels B and the second through hole 21. the first through hole 11 and the second through hole 21 are respectively arranged on opposite sides of the heat exchanger, and can form two paths of airflow circulation through two opposite paths of airflow, and the airflow of the first channels A and the second channels B do not interfere with each other. And the flexible arrangement of the two air flow paths is convenient, the application scene is wider, and the heat exchange effect is better. For example, the heat exchanger is installed in the equipment, one gas flow path is used for gas circulation inside the equipment, and the other gas flow path is used for gas circulation outside the equipment.

Preferably, the opening direction of the first through hole 11 is not parallel to the direction of the first channels A, and is preferably perpendicular to the direction of the first channels A, so that the air flow entering the first channels A from the first through hole 11 or entering from the first channels A to the first through hole 11 will change direction.

Preferably, the opening direction of the second through hole 21 is not parallel to the direction of the second channels B, and is preferably perpendicular to the direction of the second channels B, so that the air flow entering the second channels B from second through hole 21 or entering the second through hole 21 from the second channels B will change direction.

Preferably, the first through hole 11 is elongated and spans a plurality of first troughs 312, and communicates with a plurality of first channels A at the same time.

Preferably, the second through hole 21 is elongated and spans a plurality of second troughs 322, and communicates with a plurality of second channels B at the same time.

Preferably, the fin plate 3 comprises a first side 41 and a second side 42 opposite to the first side 41. the first channels A and the second channels B lead from the first side 41 to the second side 42 of the fin plate 3, the first through hole 11 is located near the first side 41 of the fin plate 3 and away from the second side 42, and the second through hole 21 is located near the second side 42 of the fin plate 3 and away from the position of the first side 41. With such a design, when the heat exchanger is in use, one airflow can enter the first channels A from the first through hole 11, and then leave from the opening of the first channels A near the second side 42 of the fin plate 3. The other path of airflow can enter the second channels B from the second through hole 21, and then leaves from the opening of the second channel B close to the first side 41 of the fin plate 3. so that the flowing directions of the two paths of airflow are, which is convenient for arranging the two paths of airflow circulation paths, and the area of the fin plate 3 through which the airflow passes is as large as possible, which improves the heat exchange efficiency.

Preferably, the second troughs 322 are open at the edge of the fin plate 3 and define an opening between the second partition plate 2 and the second partition plate 2 communicating with the outside with the second partition plate 2.

Preferably, the fin plate 3 is bent into a wave shape, the reverse side of the first troughs 312 are the second peaks 321, and the reverse side of the first peaks 311 is the second troughs 322. The wavy design can increase the contact area between the airflow and the fin plate 3 and improve the heat exchange efficiency.

More preferably, the first channels A and the second channels B are arranged at intervals, so that the space is saved, and allow the heat exchanger to pass through more airflow to fully contact the fin plate 3 with a smaller volume, so that the heat exchange efficiency is improved.

To sum up, the heat exchanger comprises two gas circulation paths, one path is formed by the first channels A and the first through hole 11, the other path is formed by the second channels B and the second through hole 21. The first through hole 11 and the second through hole 21 are respectively arranged on two opposite sides of the heat exchanger, so that two opposite air flows can pass through to form two air flow cycles, and the air flows of the first channels A and the second channels B do not interfere with each other. The flexible arrangement of the two air flow paths is also convenient, the application scene is wider, and the heat exchange effect is better. For example, the heat exchanger is arranged in equipment, one path is used for air circulation in the equipment, and the other path is used for air circulation outside the equipment. And the two paths of airflow can be designed into opposite flow directions, so that the two paths of airflow circulation paths can be conveniently arranged, and the area of the fin plate 3 through which the airflow passes is as large as possible, thereby improving the heat exchange efficiency.

The above descriptions are only preferred embodiments of the present application, and are not intended to limit the present application. For those skilled in the art, the application can have various modifications, combinations and changes. Any modifications, equivalent substitution, improvements, etc. within the spirit and principles of the application shall be comprised within the scope of the claims of the application. 

What is claimed is:
 1. A heat exchanger with two opposite airflows, wherein comprises a first partition plate (1), a fin plate (3) and a second partition plate (2) which are stacked, the first partition plate (1) and the second partition plate (2) are arranged at intervals, the fin plate (3) is arranged between the first partition plate (1) and the second partition plate (2), and the fin plate (3) is bent to form a plurality of first peaks (311) and a plurality of first troughs (312) on the front surface and a plurality of second peaks (321) and second troughs (322) on the back surface; the first peaks (311) of the fin plate (3) are connected to the first partition plate (1), and the first troughs (312) and the first partition plate (1) define a plurality of first channels (A) for gas to pass through, a first channel (A) comprises an opening communicating with the outside between the first partition plate (1) and the second partition plate (2), the first partition plate (1) is provided with a first through hole (11) communicating with the first channels (A); the second peak (321) of the fin (3) are connected to the second partition plate (2), and the second troughs (322) and the second partition plate (2) define a plurality of second channels (B) for gas to pass through, a second channel (B) comprises an opening communicating with the outside between the first partition plate (1) and the second partition plate (2), the second partition plate (2) is provided with a second through hole (21) communicating with the second channels (B); the first through hole (11) and the second through hole (21) are respectively arranged on opposite sides of the heat exchanger.
 2. The heat exchanger according to claim 1, wherein the opening direction of the first through hole (11) is not parallel to the direction of the first channels (A).
 3. The heat exchanger according to claim 1, wherein the opening direction of the second through hole (21) is not parallel to the direction of the second channels (B).
 4. The heat exchanger according to claim 1, wherein the first through hole (11) spans a plurality of first troughs (312) and communicates with a plurality of first channels (A) at the same time.
 5. The heat exchanger according to claim 1, wherein the second through hole (21) spans a plurality of second troughs (322) and communicates with a plurality of second channels (B) at the same time.
 6. The heat exchanger according to claim 1, wherein, the fin plate (3) comprises a first side (41) and a second side (42) opposite to the first side (41), the first channels (A) and the second channels (B) lead from the first side (41) to the second side (42) of the fin plate (3), the first through hole (11) is set at a position close to the first side (41) of the fin plate (3) and away from the second side (42), and the second through hole (21) is set at a position close to the second side (42) of the fin plate (3) and away from the first side (41).
 7. The heat exchanger according to claim 1, wherein the second troughs (322) are open at the edge of the fin plate (3) and define with the second partition plate (2) an opening communicating with the outside between the second partition plate (2) and the second partition plate (2).
 8. The heat exchanger according to the claim 7, wherein the fin plate (3) is bent into a wave shape, and the opposite side of the first troughs (312) are the second peaks (321), the opposite side of the first peaks (311) are the second troughs (322).
 9. The heat exchanger according to claim 8, wherein the first channels (A) and the second channels (B) are arranged alternately.
 10. The heat exchanger according to claim 2, wherein, the fin plate (3) comprises a first side (41) and a second side (42) opposite to the first side (41), the first channels (A) and the second channels (B) lead from the first side (41) to the second side (42) of the fin plate (3), the first through hole (11) is set at a position close to the first side (41) of the fin plate (3) and away from the second side (42), and the second through hole (21) is set at a position close to the second side (42) of the fin plate (3) and away from the first side (41).
 11. The heat exchanger according to claim 3, wherein, the fin plate (3) comprises a first side (41) and a second side (42) opposite to the first side (41), the first channels (A) and the second channels (B) lead from the first side (41) to the second side (42) of the fin plate (3), the first through hole (11) is set at a position close to the first side (41) of the fin plate (3) and away from the second side (42), and the second through hole (21) is set at a position close to the second side (42) of the fin plate (3) and away from the first side (41).
 12. The heat exchanger according to claim 4, wherein, the fin plate (3) comprises a first side (41) and a second side (42) opposite to the first side (41), the first channels (A) and the second channels (B) lead from the first side (41) to the second side (42) of the fin plate (3), the first through hole (11) is set at a position close to the first side (41) of the fin plate (3) and away from the second side (42), and the second through hole (21) is set at a position close to the second side (42) of the fin plate (3) and away from the first side (41).
 13. The heat exchanger according to claim 5, wherein, the fin plate (3) comprises a first side (41) and a second side (42) opposite to the first side (41), the first channels (A) and the second channels (B) lead from the first side (41) to the second side (42) of the fin plate (3), the first through hole (11) is set at a position close to the first side (41) of the fin plate (3) and away from the second side (42), and the second through hole (21) is set at a position close to the second side (42) of the fin plate (3) and away from the first side (41). 